Abstract: Some implementations described herein include systems and techniques for fabricating a wafer-on-wafer product using a filled lateral gap between beveled regions of wafers included in a stacked-wafer assembly and along a perimeter region of the stacked-wafer assembly. The systems and techniques include a deposition tool having an electrode with a protrusion that enhances an electromagnetic field along the perimeter region of the stacked-wafer assembly during a deposition operation performed by the deposition tool. Relative to an electromagnetic field generated by a deposition tool not including the electrode with the protrusion, the enhanced electromagnetic field improves the deposition operation so that a supporting fill material may be sufficiently deposited.

Abstract: An elastic shoe heel structure of a shoe includes a shoe heel and a shoe sole. The shoe heel is hollow or solid and has an upper edge soldered with a first end of a stepped elastic plate. The shoe heel has a stepped top surface corresponding in shape to the stepped elastic plate. An opposing second end of the stepped elastic plate has through holes for insertion of rivets to be connected to rivet holes of a rear section of the shoe sole. A gap is defined between the stepped elastic plate and the stepped top surface. When the user walks, a bottom of the shoe heel is contact with the ground and transfers a force from the shoe heel to the stepped elastic plate. The stepped elastic plate is compressed to absorb the force, providing a buffer effect.

Abstract: An elastic heel of the high-heeled shoes comprises a heel and a base layer. A flat-crouched elastic sheet provides its first portion to stretchingly form on a top end of the hollow or solid heel and its second portion to correspondingly rivet on an end section of the base layer via some rivets penetrating through holes and apertures, thence allowing an elastic space with a short interstice for a reciprocal movement to be defined therebetween. Whereby, a pressure caused by contacting the bottom of the heel with the ground could be directly transferred to the flat-crouched elastic sheet fixed on the top end thereof, therefore the compression of the sheet provides a cushion effect for absorbing shocks and preventing impact via the reliance generated therefrom.